Generator for hydrocarbon-vapor burners



(No Model.)

i A. M. vBRAINARD. GENERATOR PoR RYDROCARRON VAPOR BURNRRS. No. 320,838.

Patented June 23 JMW/ley N. PETERS, Pnnxu-uxhognpner, wmmgmn. n c;

UNITED STATES PATENT OFFICE.

ADELBER'I M. BRAINARD, OF CHICAGO, ILLINOIS.

GENERATOR FOR HYDROCARBON-VAPOR BURNERS.

JIECIFICATIQN forming part of Letters Patent No. 320,838, dated June 23,1885.

Application filed August Q7, 1884. (No model.)

To all whom, t may concern:

Be it known that I, ADELBERT M. BRAIN- ARD, of Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Generators for Hydrocarbon-Vapor Burners; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form a part ofthis specification.

The object of this invention is to provide an improved construction ingenerating-chambers for that class of hydrocarbon-vapor burners having acontinuous annular exit-orifice for the passage of vapor to the iame;and it consists in the matters hereinafter described, and pointed out inthe claim.

In an application for patent upon a hydrocarbon-vapor burner filed by meSeptember 6, 1882, a burner is described having an air and vapor supplytube located above the injectornozzle and terminating at its upper endin a cup, a deilector plate or disk arranged above said cup, so as toform therewith a mixingchamber beneath the plate having an annularexit-opening, and a vapor-generating chamber formed by a pipe extendingover said deflecting-plate, or by means of a transverse cham-' bertherein. In this construction the generating-chamber is located,principally, in the central part of the deflector-plate, and as aconsequence its ends only are exposed to the direct action of the flameat the periphery of the plate, the heat transmitted through the platebeing principally depended upon to produce the desired vaporization ofthe oil in the chamber.

In the present invention a generating-chamber is provided adapted foruse in connection with a burner constructed generally as described i-nthe application above mentioned, or with any other forni of burneradapted to produce a continuous annular flame, such chamber being oftubular form and extended wholly or partially around the periphery ofthe burner adjacent to and below the annular exit-opening thereof,whereby the flame is caused to impinge upon the upper surface of saidchamber throughout the whole or a principal part of its length, and thesaid chamber will be thoroughly heated, while the annular flame is atthe same time allowed a free and unobstructed outward passage fronitheexit-opening of the burner. The form of burner herein illustrated alsoembodies certain improved fea-tures of construction whereby thedciiecting-plate, the mixing-chamber, and the injecting-nozzle may beremoved or detached from the burner without disconnecting the oil orvapor supply pipes, as hereinafter fully set forth.

In the accompanying drawings, Figure l is a perspective view. of aburner embodying my invention, the top or deflecting plate of the burnerbeing absent. Fig. 2 is a vertical section through the axis of theburner and of the horizontal portion of the vapor-supply pipe. Fig. 3 isa horizontal section ou a plane immediately above the horizontal portionof the vapor-supply pipe and upon the line m x of Fig. 2. Fig. 4 is aplan of a burner, showing the generating-chamber extended entirelyaround the periphery thereof.

As herein illustrated, A is a tubular generating-chamber extendingaround the periphery of the burner adjacent to the annular exitopeningthereof, and connected at one end with a vertical tube, B, connectedwith an oil-supply pipe, C, which communicates with the oiltank, and atits opposite end wit-h a vertical pipe, D, having communication with thevertical injector-nozzle E, a suitable regulatingvalve, E', beinginterposed between the said pipe D and the nozzle for regulating theflow of vapor to the burner.

Above the nozzle E is located a vertical tube or chamber, F,communicating at its upper end with a cup, G, preferably formed integraltherewitl1,and which is provided with a top or deflecting plato or disk,H, which lforms with the cup a mixing-chamber for the air and vapordelivered by the action of the injector-nozzle through the tube F. The"plate H is supported with relation to the cup G in such manner as toform with the edge of the cup an annular opening calculated to give acontinuous annular dame.

The several parts above described, with the exception of thegenerating-chamber, are constructed and operate generally in the samemanner as the corresponding parts shown in the application abovereferred to., The ilanges g and h upon the cup G, and the disk H, saidIOO anges being for the purpose of givinga sinuous course to the mixedvapor and air in the outward passage of the latter to the exitopening ofthe chamber, are, as herein shown, of peculiar construction, and embodyfeatures ot' construction that are described and claimed` in anotherapplication for patent made by me simultaneously herewith.

rIlhe generator A is, as herein shown, in the 1o form of a curved tubewhich is arranged around the cup G, and concentric with the axis of theburner, and with its upper surface adjacent to the top edge of the cup,and in1- mediately below and in close proximity to the i 5 annularopeningbetween the cup andthe disk, so that the flame from said annularopening will impinge upon the upper surface of said tube throughout itsentire length. The generator A may extend entirely around the pe 2oriphery ofthe bui-nenas shown inFig. 5,01 it may extend only half-wayaround, as shown in Figs. l, 2, and 3, or it may be of any other lengthdesired.

One ot' the obvious advantages of the construction ot' the generator Aas above described, is that said generator, being independent of thedetlector-plate H, the latter may be made of simple form so that it ismore effect-ive and durable, may be readily and 3o cheaply replaced by anew one, if warped or otherwise injured by heat, and may also be readilylifted off from its seat to give access to the cup G for cleaning orother purposes.

In the construction herein shown the tube F and the cup G, which is madeintegral therewith, is supported upon a hollow perforated casting, F',surrounding and attached at its lower end to the injector-nozzle, andthe generator is sustained by the tubes B and D 4o independently of thesaid tube E and cup G, so that said tube F and thc cup may be readilylift-ed off from its support, and the casing E also removed in orderthat access may be had to the nozzle E for cleaning the latter.

The generator A is preferably formed, as herein shown, of a single pieceof pipe bent to form the curved part of the generator proper, and'alsothe vertical pipes B and D, the pipe B being connected at its lower endwith the supply-pipe C, as before stated, and the pipe D with ahorizontal pipe, D', extending inwardly to the nozzle E, as more clearlyshown in Fig. 5. By this construction the generator A may be readily andcheaply formed, and is cheap and durable.

As illustrated in the drawings, a pipe, I, is shown for supplyingcarbureted air for the initial heating of the generator, said pipe beingprovided with an exitnozzle, I, opening 6o beneath the horizontal pipeD. rlhe said pipe I will usually be connected with the airspace of anoiltank, in which a constant airbeing provided with a vapor-exit openingor openings adjacent to its base and the said plate or disk and belowthe level of the bottom of the generatorchamber, whereby the flame ofthe burner is caused to impinge against the lower and inner surface ofthc generator and then to pass upwardly between the outer wall ot' themixing chamber and the inner wall of the surrounding generator. Theobvious objection to this construction in the burner is that the Haineis broken up or changed in its course by the presence ofthegenerating-chainber around and above the exit-opening of themixingchamber, whereby the frame is prevented from spreading laterallyin disk or cup shape, as is desirable in this class of burners. rIheform of burner mentioned is objectionable, also, for the reason that theparts thereof cannot be as readily separated or removed for cleaning andrepairs, inasmuch as the inlet-tube of the mixing-chamber and the diskby which the mixing-chamher is supported are attached to and supportedby the generating-chamber itself, while in applieants construction themixing'chainber and geuerating-chamber are independently supported.

I claim as my invention- The combination, with the injector-nozzle E', acup, G, located over said nozzle, a tubular support for the cup,constituting a direct vaporpassage between the nozzle and the chamberwithin the cup, and a disk, H, applied over the cup and forming inconjunction therewith a mixingchainber having an annular exit-opening,of a tubular generator, A, extending wholly or partially around the cupat a point below and adjacent to the annular exit-opening, and the tubesB and D, connected with and supporting the generator independently ofthe disk and cup, one of said tubes being connected with an oil-supplypipe and the other having connection with a lateral branch, D, which isconnected to the injector-nozzle, substantially as and for the purposedescribed.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

ADELBERT M. BRAINARD.

Vitn esses:

C. CLARENCE IooLE, OLIVER E. PAGIN.

i' frs.

